这两天在开发自定义的字段。在字段部署的时候，遇到了几个问题。后来在SharePoint SDK中找到十分简单扼要的Custom Field 的部署方法，先记录下来。

Custom field types are deployed at the server farm-level, using the Windows SharePoint Services Solution Deployment functionality.

The various pieces of a custom field type solution must be deployed to the following locations:

• The field type class must be deployed as a strong-named assembly to the global assembly cache.
• The field type definition XML file must be deployed to the same location as fldtypes.xml, the XML file that defines the base Windows SharePoint Services 3.0 field types:  

\program files\...\web server extensions\12\template\xml\

Each field type definition must be included in a file named fldtypes*.xml. For example, if you have a field type definition for a field type that defines a Social Security Number, you might name the XML file fldtypes_ssn.xml.

• If you have specified a custom field editor user control for the field type, it must be deployed to the following location:

\program files\...\web server extensions\12\template\controltemplates\

在开发Custom Field Type的时候，Reflector是一个很好的工具，可以很方便的获得Assembly Information参数。